Being crammed shoulder-to-shoulder with strangers in a capsule is stressful for most people. Some deal with the stress by chit-chattering with others to distrac

Being crammed shoulder-to-shoulder with strangers in a capsule is stressful for most people. Some deal with the stress by chit-chattering with others to distract themselves. Others just want to escape into their own heads and block out the uncomfortable surroundings. I don't think much has changed, except now more people use headphones and cell phones to signal that they're in the latter group. Previously they would have nodded and said "mm-hmm, oh wow" a lot.